1968 Pontiac GTO

[Paul Ceasrine]

Super Stock & Drag Illustrated Magazine
October 1967



In November 1967, Royal Pontiac (Royal Oaks, Michigan) did a performance test for the editors of Super Stock & Drag Illustrated magazine.

The car was a 'new' 68' GTO 400/360 HP 'Ram Air I', 4-Speed (with P/S and P/B) and
4.33 gears.

The GTO underwent a 'Royal Bobcat Level I' up-grade.
The car had the 'dealer installed' Ram-Air hood scoop package.

The cylinder heads were removed, and replaced with a set of Royal Pontiac
(Casting #31) prepared 'blueprinted' units;
* 3/angle valve job
* milled and cc'd
* valve spring shim height set
* rocker-arm lock nuts
* thin cylinder head gaskets

Note: Compression ratio was estimated at 11.5 - 1 (over the stock 10.75 -1 ratio)

* The distributor mechanics were replaced with a performance re-curve kit.
* Larger jets were installed in the Rochester 750 CFM carburetor.
* Colder Champion J10Y spark plugs were installed.
* A heat-riser block gasket was used for the intake manifold.
* A set of Doug's Headers were installed.
* The exhaust pipes, mufflers and tail-pipe extensions were removed, to lighten the car.
* A set of M & H Slicks (8.00" wide x 14") were installed on Hurst (14" x 6") Rallye wheels.

The performance test was supervised by Milt Schornack, Head of the High-Performance
Division of Royal Pontiac.

Driver; John Kosmala of Royal Pontiac

Results: 12.93 @ 108.05 MPH

This was the supposed car;
White with gold rocker panel moldings, and a gold stripe painted
down the hood center, an Endura front bumper, hidden headlights, and Hurst (14" x 6") Rallye wheels.